Sound Design - Heartbeat

Hello, I’m working on a project that requires a real human heartbeat audio file. I’m seeking a sound designer who can capture a clear recording of a heartbeat from a healthy male subject. I need 3 minutes of the heart at rest and 2 minutes at a fast rate after exercise. It’s okay to have lung sounds in the background as I want this to sound as if it’s being heard through a stethoscope. If interested, please describe what type of mics and methods you will be using to obtain the sounds. Please provide a short sample clip if possible.